Air heater with perforated resistance element
US6242712A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 11, 1999 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | May 11, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A heater for heating air in an intake passage of an internal combustion engine. The heater includes a heating element coupled to a first holder and a second holder. The heating element has a preselected resistance corresponding to plurality apertures formed therethrough. A second embodiment includes a heating element positioned within a housing. The heating element includes a plurality of selectively removable slugs. After removal of one or more of the slugs, the electrical resistance of the heating element increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.